Putty-removing power tool



Oct. 17, 1939. J A, SAUSER Er AL 2,176,104.

PUTTY REMOVING POWER TOOL Filed Feb. 23, 1958 Josl-:PH A. SAUSER mx v RQSWLL F WERT Patented Oct. 17, 1939 PATENT OFFICE PUTTfY-REMO-VING POWER TOOL Joseph A. Sauser and Roswell F. Wert, Evanston, Dl,

Application February 23, 1938, Serial No. 192,072

1 Claim.

This invention relates to a putty removing power tool adapted particularly for removing putty from window sashes or other glazed Structures.

An important object of the invention is to produce a tool in which the putty removing blade is flat or chisel blade shape and is longitudinally oscillated or vibrated at comparatively high speed but with the amplitude of oscillation or vibration comparatively small.

A further object is to provide a tool which can be readily shifted along the surface of a sash with the cutting blade engaging in the putty recess so as to accurately guide the blade for accurate and clean removal of the putty from the putty recess or channel, the short rapid oscillation or vibration of the blade in direction longitudinally of the putty channel serving to rapidly loosen and disintegrate the putty for expulsion therefrom by the blade.

A further object of the invention is to provide simplified and improved means for effecting the rapid oscillation or vibration of the blade.

Still another object is to produce a tool which may be economically manufactured and operated.

The Various features of our invention are incorporated in the structure shown on the drawing, in which drawing Figure 1 is a side elevation of the tool; and

Figure 2 is a front elevation thereof.

The supporting structure of the tool comprises a base plate I having vertical front and rear side walls or flanges 2 and 3 rising therefrom. A blade supporting bar 4 is supported against the outer sides of the walls 2 and 3 near the bottom thereof as by brackets 5 and 6 which may be detachably secured to the walls. The bar extends parallel with the base plate I and at its front end has the cutting blade l secured thereto. This blade may be of any desired shape, but as shown it is of chisel shape, having the front cutting edge 8, the blade being preferably detachably secured to the bar as by screws 9 so that it may be removed for sharpening or other purposes.

Above the bar 4 a shaft I0 is journaled in suitable supports such as brackets I I and I2 secured to the walls 2 and 3 adjacent to the inner edges thereof. The shaft supports a cylindrical hub I3 which has a circumferentially extending cam slot I4 into which projects the cam pin I5 secured to and extending upwardly from the bar 4, so that, when the hub I3 is rotated, the bar and the blade will be reciprocated longitudinally.

Mounted on the base plate I is an electric motor M whose shaft carries a driving pulley IB connected by belt I'I with the hub I3 which is provided with a pulley groove I8 for the belt, the hub I3 being thus rapidly rotatable by the motor. The cam groove I4 is preferable such that the amplitude of oscillation or vibration of the bar and blade will be comparatively small, the rapidity of vibration rather than the amplitude being depended upon for rapid disintegration, loosening and removal of the putty by the blade.

The drawing shows the tool mounted on a glazed structure such as a window sash S from which the putty P is to be removed for release of the glass pane G. As the tool is moved along the sash, the blade will align itself in the putty groove l@ against the vertical wall thereof so as to cleave the putty from the vertical wall of the sash and rapidly disintegrate and remove the putty from the groove under the influence of the rapid longitudinal vibration or pulsation of the blade as the motor operates. By having the vibrations or pulsations small but rapid, there will be no danger of the blade edge cutting into the wood of the sash, but a clean line of cleavage'will result between the vertical wall of the groove and the putty. The tool will be moved along to keep pace with the removal of the putty by the blade, and removal of the putty from a sash will thus be quickly, conveniently and efficiently accomplished. As the tool advances, the triangular points which were applied to hold the glass pane in place before the application of the putty, will be automatically withdrawn by the blade without injury to the blade, as these points are of cornparatively soft metal.

We have thus disclosed a practical and efficient embodiment of the features of our invention but We do not desire to be limited to the exact construction and arrangement and operation shown and described as changes and modifications may be made without departing from the scope of the invention.

We claim as follows:

A putty removing tool comprising a supporting frame to be shifted on a window sash alongside of a groove from which putty is to be removed, a bar mounted on said frame for reciprocation longitudinally thereon, a driving motor on said frame, a driving connection between said motor and said bar for causing rapid longitudinal vibration of the bar, and a cutting element in the form of a hat chisel blade secured to said bar and extending downwardly therefrom for engagement in the groove and against the side of the groove for guiding the supporting frame and the blade for cutting engagement of the blade with the putty.

JOSEPH A. SAUSER. ROSWELL F. WERT. 

